Replace Eclipselink with Hibernate

Issue-ID: POLICY-4533
Change-Id: Ica9b02be76ba45461e615e806d779b0799681680
Signed-off-by: liamfallon <liam.fallon@est.tech>

3 files changed, 37 insertions, 33 deletions

diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerImpl.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerImpl.java
index 2e18e8395..c36ca786d 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerImpl.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerImpl.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2023 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,7 +34,6 @@ import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.ToString;
-import org.eclipse.persistence.config.PersistenceUnitProperties;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.common.utils.jpa.EntityMgrCloser;
 import org.onap.policy.common.utils.jpa.EntityTransCloser;
@@ -97,7 +97,6 @@ public class OperationHistoryDataManagerImpl implements OperationHistoryDataMana
     @Getter
     private long recordsUpdated = 0;
 
-
     /**
      * Constructs the object.
      *
@@ -149,11 +148,11 @@ public class OperationHistoryDataManagerImpl implements OperationHistoryDataMana
 
     @Override
     public synchronized void store(String requestId, String clName, Object event, String targetEntity,
-                    ControlLoopOperation operation) {
+        ControlLoopOperation operation) {
 
         if (stopped) {
             logger.warn("operation history thread is stopped, discarding requestId={} event={} operation={}", requestId,
-                            event, operation);
+                event, operation);
             return;
         }
 
@@ -226,7 +225,7 @@ public class OperationHistoryDataManagerImpl implements OperationHistoryDataMana
         logger.info("store operation history record batch");
 
         try (var emc = new EntityMgrCloser(entityManager);
-                        var trans = new EntityTransCloser(entityManager.getTransaction())) {
+            var trans = new EntityTransCloser(entityManager.getTransaction())) {
 
             var nrecords = 0;
             var rec = firstRecord;
@@ -261,13 +260,13 @@ public class OperationHistoryDataManagerImpl implements OperationHistoryDataMana
         logger.info("store operation history record for {}", reqId);
 
         List<OperationsHistory> results = entityMgr
-                        .createQuery("select e from OperationsHistory e" + " where e.closedLoopName= ?1"
-                                        + " and e.requestId= ?2" + " and e.subrequestId= ?3" + " and e.actor= ?4"
-                                        + " and e.operation= ?5" + " and e.target= ?6", OperationsHistory.class)
-                        .setParameter(1, clName).setParameter(2, rec.getRequestId())
-                        .setParameter(3, operation.getSubRequestId()).setParameter(4, operation.getActor())
-                        .setParameter(5, operation.getOperation()).setParameter(6, rec.getTargetEntity())
-                        .getResultList();
+            .createQuery("select e from OperationsHistory e" + " where e.closedLoopName= ?1"
+                + " and e.requestId= ?2" + " and e.subrequestId= ?3" + " and e.actor= ?4"
+                + " and e.operation= ?5" + " and e.target= ?6", OperationsHistory.class)
+            .setParameter(1, clName).setParameter(2, rec.getRequestId())
+            .setParameter(3, operation.getSubRequestId()).setParameter(4, operation.getActor())
+            .setParameter(5, operation.getOperation()).setParameter(6, rec.getTargetEntity())
+            .getResultList();
 
         if (results.size() > 1) {
             logger.warn("unexpected operation history record count {} for {}", results.size(), reqId);
@@ -313,12 +312,11 @@ public class OperationHistoryDataManagerImpl implements OperationHistoryDataMana
      */
     private Properties toProperties(OperationHistoryDataManagerParams params) {
         var props = new Properties();
-        props.put(PersistenceUnitProperties.JDBC_DRIVER, params.getDriver());
-        props.put(PersistenceUnitProperties.JDBC_URL, params.getUrl());
-        props.put(PersistenceUnitProperties.JDBC_USER, params.getUserName());
-        props.put(PersistenceUnitProperties.JDBC_PASSWORD, params.getPassword());
-        props.put(PersistenceUnitProperties.TARGET_DATABASE, params.getDbType());
-        props.put(PersistenceUnitProperties.CLASSLOADER, getClass().getClassLoader());
+        props.put("javax.persistence.jdbc.driver",   params.getDriver());
+        props.put("javax.persistence.jdbc.url",      params.getUrl());
+        props.put("javax.persistence.jdbc.user",     params.getUserName());
+        props.put("javax.persistence.jdbc.password", params.getPassword());
+        props.put("hibernate.dialect",               params.getDbHibernateDialect());
 
         return props;
     }
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerParams.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerParams.java
index c93ac8b58..054f4b1c1 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerParams.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManagerParams.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2023 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -41,7 +42,7 @@ import org.onap.policy.common.parameters.annotations.NotNull;
 public class OperationHistoryDataManagerParams {
     public static final String DEFAULT_PU = "OperationsHistoryPU";
     public static final String DEFAULT_DRIVER = "org.mariadb.jdbc.Driver";
-    public static final String DEFAULT_TYPE = "MySQL";
+    public static final String DEFAULT_TYPE = "MariaDB";
 
     @NotBlank
     private String url;
@@ -85,4 +86,12 @@ public class OperationHistoryDataManagerParams {
     public ValidationResult validate(String resultName) {
         return new BeanValidator().validateTop(resultName, this);
     }
+
+    /**
+     * Return the Hibernate dialect for the database type.
+     * @return the dialect
+     */
+    public Object getDbHibernateDialect() {
+        return "org.hibernate.dialect." + dbType + "Dialect";
+    }
 }
diff --git a/controlloop/common/eventmanager/src/main/resources/META-INF/persistence.xml b/controlloop/common/eventmanager/src/main/resources/META-INF/persistence.xml
index f5d313adc..115ec51ae 100644
--- a/controlloop/common/eventmanager/src/main/resources/META-INF/persistence.xml
+++ b/controlloop/common/eventmanager/src/main/resources/META-INF/persistence.xml
@@ -1,9 +1,10 @@
-<?xml version="1.0" encoding="UTF-8" ?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
   ============LICENSE_START=======================================================
   drools-applications
   ================================================================================
   Copyright (C) 2018-2021 AT&T Intellectual Property. All rights reserved.
+  Modifications Copyright (C) 2023 Nordix Foundation.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -18,19 +19,15 @@
   limitations under the License.
   ============LICENSE_END=========================================================
   -->
-<persistence version="2.1"
- xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
+<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
 
- <persistence-unit name="OperationsHistoryPU"
-  transaction-type="RESOURCE_LOCAL">
-  <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+    <persistence-unit name="OperationsHistoryPU" transaction-type="RESOURCE_LOCAL">
+        <class>org.onap.policy.guard.OperationsHistory</class>
 
-  <class>org.onap.policy.guard.OperationsHistory</class>
-
-  <properties>
-   <property name="eclipselink.ddl-generation" value="create-or-extend-tables" />
-   <property name="eclipselink.logging.level" value="WARNING" />
-  </properties>
- </persistence-unit>
+        <properties>
+            <property name="javax.persistence.schema-generation.database.action" value="create" />
+            <property name="hibernate.dialect" value="org.hibernate.dialect.MariaDBDialect" />
+            <property name="hibernate.show_sql" value="false" />
+        </properties>
+    </persistence-unit>
 </persistence>